Salut!
cela est supporté mais sans passer par cet assistant, il faut utiliser l'ajout de role normal:
“…This article provides the guidelines to install and configure the Remote Desktop Session Host role service on a computer running Windows Server 2012 without the Remote Desktop Connection Broker role service installed.
This configuration should only be used when it is the only option as the recommended configuration includes the Remote Desktop Connection Broker to provide access to the complete functionality with Remote Desktop Services. If a Domain Controller is available on a separate server, it is recommended to use the Standard Remote Desktop Services deployment wizard. This configuration is appropriate when there is only one server on the network. This server can be part of a workgroup or may be configured as a Domain Controller.
This configuration, will provide desktop sessions to users based on the number of Remote Desktop Services client access license (RDS CALs) installed on the server, but will not provide access to RemoteApp programs or the RDWeb site…”
Source:
http://support.microsoft.com/kb/2833839/
(KB2833839)
